This is a set of 14" triple-flanged hoops - also known as pressed rims - with a thickness of 2.3mm.
Triple-flanged hoops are known for their open and light tone. With this set, this is exactly what you get if you mount them on your snare drum.
The rims are also in a more sturdy 3.0mm version that gives a bit more control and volume.
The rims are 14", chromed, and each have 10 holes.
There is room for seiding straps in the bottom rim.